[BUG] Copy button does not work

[jribbink]

Current Behavior

Currently, the copy button does not work due to the fact that the current permissions for iframes in FCL do not grant write access to the clipboard.

Expected Behavior

The button should work, but in the interim, we should hide the button if it does not work.

Steps To Reproduce

Try to copy a WalletConnect URI when connecting to mobile wallet.

Environment

n/a

What are you currently working on that this is blocking?

No response